Home / 926,641,939.75-1,278,790,848.96-545,190,601.38

Finding the Fourth Proportional to 926,641,939.75, 1,278,790,848.96 and 545,190,601.38

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Solution

The fourth proportional to 926,641,939.75, 1,278,790,848.96 and 545,190,601.38 is: 752,377,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,641,939.75 : 1,278,790,848.96 = 545,190,601.38 : x
  2. Step 2: Convert to fraction form
    926,641,939.75/1,278,790,848.96 = 545,190,601.38/x
  3. Step 3: Cross multiply
    926,641,939.75x = 1,278,790,848.96 × 545,190,601.38
  4. Step 4: Simplify right side
    926,641,939.75x = 697,184,751,983,743,104
  5. Step 5: Solve for x
    x = 697,184,751,983,743,104/926,641,939.75
  6. Step 6: Final answer
    x = 752,377,722.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.